@misc{indiciae4e2a19aa4628, title = {Progress report on the Huntsville, Alabama project, covering the period from July 1 to December 31, 1952}, author = {G.T. Malmberg}, year = {1953}, doi = {10.3133/ofr53168}, url = {https://pubs.usgs.gov/publication/ofr53168}, note = {Source identifier: ofr53168} }